As the others said, good gesture. I have had to do the exact same thing here, and that was all it took too control my temper. (Didn't want to have to keep apologising).
I think that you will find, if you haven't already, that there are quite a few cops on here as well as an incredible variety of other people. Most of the Police officers let the cop-complaining stuff just roll off, you are the last one that needs any additional stress in your life. Take care.